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青桐为梧桐科梧桐属落叶乔木,原产我国及日本,华北至华南、西南各省多有栽培。青桐树干挺拔,枝干翠绿,树冠秀美,可用作行道树、庭荫树,也可点缀于草坪、池畔,是良好的绿化材料。现将其栽培管理技术介绍如下,仅供参考。一、形态特征和生态习性青桐高可达20m,树冠卵圆形,树干端直,树皮灰绿色,侧枝每年阶梯状轮生,小枝粗壮,翠绿色;叶3～5掌状裂,叶长15cm～20cm,基部心形,裂片全缘,先端渐尖,表面光滑,背面有星状毛:项生圆锥花序,花萼裂片条形,长1cm,淡黄绿色,开展或反卷,外面密被短黄色柔毛;瞢葵果,种子棕黄色,径约6cm,略大于黄豆,
Green Tong is Sycamore tree Indus deciduous tree, native to China and Japan, North China to South China, Southwest provinces and more cultivation. Green Tong trunk upright, branches green, beautiful crown, can be used as street trees, court shade trees, but also dotted lawn, poolside, is a good green material. Now its cultivation and management techniques are as follows, for reference purposes only. First, the morphological characteristics and ecological habits Green Tong high up to 20m, crown oval, trunk straight, bark gray-green, lateral branches stepping annual, branchlets thick, emerald; leaves 3 to 5 palmately lobed, leaf length 15cm ~ 20cm, base cordate, lobes entire, apex acuminate, smooth surface, abaxially stellate hairy: entries panicle, calyx lobes strip, length 1cm, yellowish green, spreading or rewinding, outer densely covered Short yellow pilose; aesfoil, seed brown, diameter of about 6cm, slightly larger than the soybean,